H100 vs MI355X
H100 starts at $1.99/GPU-hour on-demand; MI355X has no current on-demand rate. Compare the exact variants, memory and published specifications below. Peak compute figures do not establish application speed.
H100
MI355X
Spec sheet
| H100 | MI355X | |
|---|---|---|
| Spec variant | H100 SXM | MI355X |
| Architecture | Hopper | CDNA 4 |
| VRAM (spec variant) | 80 GB | 288 GB |
| FP16 TFLOPS (dense) | 989 | 2500 |
| Memory bandwidth | 3350 GB/s | 8000 GB/s |
| TDP | 700 W | 1400 W |
| Interconnect | NVLink 900GB/s | Infinity Fabric |
| Launched | 2022 | 2025 |
What they cost to rent (2026-10-02)
| H100 | MI355X | |
|---|---|---|
| Cheapest on-demand $/hr | $1.99 | n/a |
| Cheapest spot/community $/hr | $0.94 | $2.59 |
| Cheapest source | Voltage Park | n/a |
| Providers offering it | 31 | 1 |
Lowest recorded on-demand rate per configuration; highlighted = cheaper. Spot/marketplace tiers shown on the individual pages.
FAQ
Which has more VRAM, H100 or MI355X?
The largest recorded H100 variant has 94 GB and the largest MI355X variant has 288 GB. Other variants may have less memory. The MI355X has more.
Compare more rental options: the screener · price movers · methodology.